Leroy Thompson has trained military and police special-operations units around the world, focusing especially on the tactical use of firearms. He is the author of more than 50 books, including The Colt 1911 Pistol and The Browning High-Power Pistol for Osprey.

The Sten submachine gun - officially the 'Carbine, Machine, Sten' - was developed to fulfill the pressing British need for large quantities of cheaply produced weapons after Dunkirk, when German invasion was a very real possibility. Over four million were built during World War II, and the Sten was widely used by airborne troops, tankers, and others who needed a compact weapon with substantial firepower. It proved especially popular with Resistance fighters as it was easy to conceal, deadly at close range, and could fire captured German ammunition - with a design so simple that Resistance fighters were able to produce them in bicycle shops. Featuring vivid first-hand accounts, specially commissioned full-colour artwork and close-up photographs, this is the fascinating story of the mass-produced submachine gun that provided Allied soldiers and Resistance fighters with devastating close-range firepower.